X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Ferr%2Ferr.c;h=03cbd738e19328e8e016e2392db51b1587a42d1d;hp=b937155c98091ac2690ed91a49ef4172f3efcc9b;hb=6cc0b3c2171e26379e898574cb6d42b8d8dcc113;hpb=6827cb3610fee4ec8cc120cc6b5bf88b04884ae7 diff --git a/crypto/err/err.c b/crypto/err/err.c index b937155c98..03cbd738e1 100644 --- a/crypto/err/err.c +++ b/crypto/err/err.c @@ -1,126 +1,26 @@ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ -/* ==================================================================== - * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include #include #include -#include -#include -#include +#include "internal/cryptlib_int.h" +#include "internal/err.h" +#include "internal/err_int.h" +#include #include #include #include -#include "internal/err.h" #include +#include "internal/thread_once.h" -static void err_load_strings(int lib, ERR_STRING_DATA *str); +static int err_load_strings(const ERR_STRING_DATA *str); static void ERR_STATE_free(ERR_STATE *s); #ifndef OPENSSL_NO_ERR @@ -152,12 +52,15 @@ static ERR_STRING_DATA ERR_str_libraries[] = { {ERR_PACK(ERR_LIB_TS, 0, 0), "time stamp routines"}, {ERR_PACK(ERR_LIB_ENGINE, 0, 0), "engine routines"}, {ERR_PACK(ERR_LIB_OCSP, 0, 0), "OCSP routines"}, + {ERR_PACK(ERR_LIB_UI, 0, 0), "UI routines"}, {ERR_PACK(ERR_LIB_FIPS, 0, 0), "FIPS routines"}, {ERR_PACK(ERR_LIB_CMS, 0, 0), "CMS routines"}, {ERR_PACK(ERR_LIB_HMAC, 0, 0), "HMAC routines"}, {ERR_PACK(ERR_LIB_CT, 0, 0), "CT routines"}, {ERR_PACK(ERR_LIB_ASYNC, 0, 0), "ASYNC routines"}, {ERR_PACK(ERR_LIB_KDF, 0, 0), "KDF routines"}, + {ERR_PACK(ERR_LIB_OSSL_STORE, 0, 0), "STORE routines"}, + {ERR_PACK(ERR_LIB_SM2, 0, 0), "SM2 routines"}, {0, NULL}, }; @@ -181,6 +84,13 @@ static ERR_STRING_DATA ERR_str_functs[] = { {ERR_PACK(0, SYS_F_GETSOCKOPT, 0), "getsockopt"}, {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"}, {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"}, + {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"}, + {ERR_PACK(0, SYS_F_OPEN, 0), "open"}, + {ERR_PACK(0, SYS_F_CLOSE, 0), "close"}, + {ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"}, + {ERR_PACK(0, SYS_F_STAT, 0), "stat"}, + {ERR_PACK(0, SYS_F_FCNTL, 0), "fcntl"}, + {ERR_PACK(0, SYS_F_FSTAT, 0), "fstat"}, {0, NULL}, }; @@ -196,26 +106,16 @@ static ERR_STRING_DATA ERR_str_reasons[] = { {ERR_R_DSA_LIB, "DSA lib"}, {ERR_R_X509_LIB, "X509 lib"}, {ERR_R_ASN1_LIB, "ASN1 lib"}, - {ERR_R_CONF_LIB, "CONF lib"}, - {ERR_R_CRYPTO_LIB, "CRYPTO lib"}, {ERR_R_EC_LIB, "EC lib"}, - {ERR_R_SSL_LIB, "SSL lib"}, {ERR_R_BIO_LIB, "BIO lib"}, {ERR_R_PKCS7_LIB, "PKCS7 lib"}, {ERR_R_X509V3_LIB, "X509V3 lib"}, - {ERR_R_PKCS12_LIB, "PKCS12 lib"}, - {ERR_R_RAND_LIB, "RAND lib"}, - {ERR_R_DSO_LIB, "DSO lib"}, {ERR_R_ENGINE_LIB, "ENGINE lib"}, - {ERR_R_OCSP_LIB, "OCSP lib"}, - {ERR_R_TS_LIB, "TS lib"}, + {ERR_R_UI_LIB, "UI lib"}, + {ERR_R_OSSL_STORE_LIB, "STORE lib"}, {ERR_R_ECDSA_LIB, "ECDSA lib"}, {ERR_R_NESTED_ASN1_ERROR, "nested asn1 error"}, - {ERR_R_BAD_ASN1_OBJECT_HEADER, "bad asn1 object header"}, - {ERR_R_BAD_GET_ASN1_OBJECT_CALL, "bad get asn1 object call"}, - {ERR_R_EXPECTING_AN_ASN1_SEQUENCE, "expecting an asn1 sequence"}, - {ERR_R_ASN1_LENGTH_MISMATCH, "asn1 length mismatch"}, {ERR_R_MISSING_ASN1_EOS, "missing asn1 eos"}, {ERR_R_FATAL, "fatal"}, @@ -226,19 +126,19 @@ static ERR_STRING_DATA ERR_str_reasons[] = { {ERR_R_INTERNAL_ERROR, "internal error"}, {ERR_R_DISABLED, "called a function that was disabled at compile-time"}, {ERR_R_INIT_FAIL, "init fail"}, + {ERR_R_OPERATION_FAIL, "operation fail"}, {0, NULL}, }; #endif static CRYPTO_ONCE err_init = CRYPTO_ONCE_STATIC_INIT; +static int set_err_thread_local; static CRYPTO_THREAD_LOCAL err_thread_local; static CRYPTO_ONCE err_string_init = CRYPTO_ONCE_STATIC_INIT; static CRYPTO_RWLOCK *err_string_lock; -/* Predeclarations of the "err_defaults" functions */ -static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit); static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *); /* @@ -264,36 +164,17 @@ static unsigned long err_string_data_hash(const ERR_STRING_DATA *a) static int err_string_data_cmp(const ERR_STRING_DATA *a, const ERR_STRING_DATA *b) { - return (int)(a->error - b->error); -} - -static LHASH_OF(ERR_STRING_DATA) *get_hash(int create, int lockit) -{ - LHASH_OF(ERR_STRING_DATA) *ret = NULL; - - if (lockit) - CRYPTO_THREAD_write_lock(err_string_lock); - if (!int_error_hash && create) { - int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash, - err_string_data_cmp); - } - if (int_error_hash != NULL) - ret = int_error_hash; - if (lockit) - CRYPTO_THREAD_unlock(err_string_lock); - - return ret; + if (a->error == b->error) + return 0; + return a->error > b->error ? 1 : -1; } static ERR_STRING_DATA *int_err_get_item(const ERR_STRING_DATA *d) { ERR_STRING_DATA *p = NULL; - LHASH_OF(ERR_STRING_DATA) *hash; CRYPTO_THREAD_read_lock(err_string_lock); - hash = get_hash(0, 0); - if (hash) - p = lh_ERR_STRING_DATA_retrieve(hash, d); + p = lh_ERR_STRING_DATA_retrieve(int_error_hash, d); CRYPTO_THREAD_unlock(err_string_lock); return p; @@ -330,15 +211,11 @@ static void build_SYS_str_reasons(void) for (i = 1; i <= NUM_SYS_STR_REASONS; i++) { ERR_STRING_DATA *str = &SYS_str_reasons[i - 1]; - str->error = (unsigned long)i; + str->error = ERR_PACK(ERR_LIB_SYS, 0, i); if (str->string == NULL) { char (*dest)[LEN_SYS_STR_REASON] = &(strerror_tab[i - 1]); - char *src = strerror(i); - if (src != NULL) { - strncpy(*dest, src, sizeof(*dest)); - (*dest)[sizeof(*dest) - 1] = '\0'; + if (openssl_strerror_r(i, *dest, sizeof(*dest))) str->string = *dest; - } } if (str->string == NULL) str->string = "unknown"; @@ -352,27 +229,27 @@ static void build_SYS_str_reasons(void) init = 0; CRYPTO_THREAD_unlock(err_string_lock); + err_load_strings(SYS_str_reasons); } #endif -#define err_clear_data(p,i) \ +#define err_clear_data(p, i) \ do { \ - if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) \ - { \ + if ((p)->err_data_flags[i] & ERR_TXT_MALLOCED) {\ OPENSSL_free((p)->err_data[i]); \ - (p)->err_data[i]=NULL; \ - } \ - (p)->err_data_flags[i]=0; \ - } while(0) + (p)->err_data[i] = NULL; \ + } \ + (p)->err_data_flags[i] = 0; \ + } while (0) -#define err_clear(p,i) \ +#define err_clear(p, i) \ do { \ - (p)->err_flags[i]=0; \ - (p)->err_buffer[i]=0; \ - err_clear_data(p,i); \ - (p)->err_file[i]=NULL; \ - (p)->err_line[i]= -1; \ - } while(0) + err_clear_data(p, i); \ + (p)->err_flags[i] = 0; \ + (p)->err_buffer[i] = 0; \ + (p)->err_file[i] = NULL; \ + (p)->err_line[i] = -1; \ + } while (0) static void ERR_STATE_free(ERR_STATE *s) { @@ -380,81 +257,117 @@ static void ERR_STATE_free(ERR_STATE *s) if (s == NULL) return; - for (i = 0; i < ERR_NUM_ERRORS; i++) { err_clear_data(s, i); } OPENSSL_free(s); } -static void do_err_strings_init(void) +DEFINE_RUN_ONCE_STATIC(do_err_strings_init) { - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE); + if (!OPENSSL_init_crypto(0, NULL)) + return 0; err_string_lock = CRYPTO_THREAD_lock_new(); - CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE); + if (err_string_lock == NULL) + return 0; + int_error_hash = lh_ERR_STRING_DATA_new(err_string_data_hash, + err_string_data_cmp); + if (int_error_hash == NULL) { + CRYPTO_THREAD_lock_free(err_string_lock); + err_string_lock = NULL; + return 0; + } + return 1; } -void ERR_load_ERR_strings(void) +void err_cleanup(void) { -#ifndef OPENSSL_NO_ERR - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); - - err_load_strings(0, ERR_str_libraries); - err_load_strings(0, ERR_str_reasons); - err_load_strings(ERR_LIB_SYS, ERR_str_functs); - build_SYS_str_reasons(); - err_load_strings(ERR_LIB_SYS, SYS_str_reasons); -#endif + if (set_err_thread_local != 0) + CRYPTO_THREAD_cleanup_local(&err_thread_local); + CRYPTO_THREAD_lock_free(err_string_lock); + err_string_lock = NULL; + lh_ERR_STRING_DATA_free(int_error_hash); + int_error_hash = NULL; } -static void err_load_strings(int lib, ERR_STRING_DATA *str) +/* + * Legacy; pack in the library. + */ +static void err_patch(int lib, ERR_STRING_DATA *str) { - LHASH_OF(ERR_STRING_DATA) *hash; + unsigned long plib = ERR_PACK(lib, 0, 0); + for (; str->error != 0; str++) + str->error |= plib; +} + +/* + * Hash in |str| error strings. Assumes the URN_ONCE was done. + */ +static int err_load_strings(const ERR_STRING_DATA *str) +{ CRYPTO_THREAD_write_lock(err_string_lock); - hash = get_hash(1, 0); - if (hash) { - for (; str->error; str++) { - if (lib) - str->error |= ERR_PACK(lib, 0, 0); - (void)lh_ERR_STRING_DATA_insert(hash, str); - } - } + for (; str->error; str++) + (void)lh_ERR_STRING_DATA_insert(int_error_hash, + (ERR_STRING_DATA *)str); CRYPTO_THREAD_unlock(err_string_lock); + return 1; } -void ERR_load_strings(int lib, ERR_STRING_DATA *str) +int ERR_load_ERR_strings(void) { - ERR_load_ERR_strings(); - err_load_strings(lib, str); +#ifndef OPENSSL_NO_ERR + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return 0; + + err_load_strings(ERR_str_libraries); + err_load_strings(ERR_str_reasons); + err_patch(ERR_LIB_SYS, ERR_str_functs); + err_load_strings(ERR_str_functs); + build_SYS_str_reasons(); +#endif + return 1; } -void ERR_unload_strings(int lib, ERR_STRING_DATA *str) +int ERR_load_strings(int lib, ERR_STRING_DATA *str) { - LHASH_OF(ERR_STRING_DATA) *hash; + if (ERR_load_ERR_strings() == 0) + return 0; - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + err_patch(lib, str); + err_load_strings(str); + return 1; +} - CRYPTO_THREAD_write_lock(err_string_lock); - hash = get_hash(0, 0); - if (hash) { - for (; str->error; str++) { - if (lib) - str->error |= ERR_PACK(lib, 0, 0); - (void)lh_ERR_STRING_DATA_delete(hash, str); - } - } - CRYPTO_THREAD_unlock(err_string_lock); +int ERR_load_strings_const(const ERR_STRING_DATA *str) +{ + if (ERR_load_ERR_strings() == 0) + return 0; + err_load_strings(str); + return 1; } -void err_free_strings_intern(void) +int ERR_unload_strings(int lib, ERR_STRING_DATA *str) { - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return 0; CRYPTO_THREAD_write_lock(err_string_lock); - lh_ERR_STRING_DATA_free(int_error_hash); - int_error_hash = NULL; + /* + * We don't need to ERR_PACK the lib, since that was done (to + * the table) when it was loaded. + */ + for (; str->error; str++) + (void)lh_ERR_STRING_DATA_delete(int_error_hash, str); CRYPTO_THREAD_unlock(err_string_lock); + + return 1; +} + +void err_free_strings_int(void) +{ + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return; } /********************************************************/ @@ -483,6 +396,8 @@ void ERR_put_error(int lib, int func, int reason, const char *file, int line) } #endif es = ERR_get_state(); + if (es == NULL) + return; es->top = (es->top + 1) % ERR_NUM_ERRORS; if (es->top == es->bottom) @@ -500,6 +415,8 @@ void ERR_clear_error(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return; for (i = 0; i < ERR_NUM_ERRORS; i++) { err_clear(es, i); @@ -509,50 +426,50 @@ void ERR_clear_error(void) unsigned long ERR_get_error(void) { - return (get_error_values(1, 0, NULL, NULL, NULL, NULL)); + return get_error_values(1, 0, NULL, NULL, NULL, NULL); } unsigned long ERR_get_error_line(const char **file, int *line) { - return (get_error_values(1, 0, file, line, NULL, NULL)); + return get_error_values(1, 0, file, line, NULL, NULL); } unsigned long ERR_get_error_line_data(const char **file, int *line, const char **data, int *flags) { - return (get_error_values(1, 0, file, line, data, flags)); + return get_error_values(1, 0, file, line, data, flags); } unsigned long ERR_peek_error(void) { - return (get_error_values(0, 0, NULL, NULL, NULL, NULL)); + return get_error_values(0, 0, NULL, NULL, NULL, NULL); } unsigned long ERR_peek_error_line(const char **file, int *line) { - return (get_error_values(0, 0, file, line, NULL, NULL)); + return get_error_values(0, 0, file, line, NULL, NULL); } unsigned long ERR_peek_error_line_data(const char **file, int *line, const char **data, int *flags) { - return (get_error_values(0, 0, file, line, data, flags)); + return get_error_values(0, 0, file, line, data, flags); } unsigned long ERR_peek_last_error(void) { - return (get_error_values(0, 1, NULL, NULL, NULL, NULL)); + return get_error_values(0, 1, NULL, NULL, NULL, NULL); } unsigned long ERR_peek_last_error_line(const char **file, int *line) { - return (get_error_values(0, 1, file, line, NULL, NULL)); + return get_error_values(0, 1, file, line, NULL, NULL); } unsigned long ERR_peek_last_error_line_data(const char **file, int *line, const char **data, int *flags) { - return (get_error_values(0, 1, file, line, data, flags)); + return get_error_values(0, 1, file, line, data, flags); } static unsigned long get_error_values(int inc, int top, const char **file, @@ -564,6 +481,8 @@ static unsigned long get_error_values(int inc, int top, const char **file, unsigned long ret; es = ERR_get_state(); + if (es == NULL) + return 0; if (inc && top) { if (file) @@ -591,15 +510,13 @@ static unsigned long get_error_values(int inc, int top, const char **file, es->err_buffer[i] = 0; } - if ((file != NULL) && (line != NULL)) { + if (file != NULL && line != NULL) { if (es->err_file[i] == NULL) { *file = "NA"; - if (line != NULL) - *line = 0; + *line = 0; } else { *file = es->err_file[i]; - if (line != NULL) - *line = es->err_line[i]; + *line = es->err_line[i]; } } @@ -627,46 +544,34 @@ void ERR_error_string_n(unsigned long e, char *buf, size_t len) const char *ls, *fs, *rs; unsigned long l, f, r; - l = ERR_GET_LIB(e); - f = ERR_GET_FUNC(e); - r = ERR_GET_REASON(e); + if (len == 0) + return; + l = ERR_GET_LIB(e); ls = ERR_lib_error_string(e); - fs = ERR_func_error_string(e); - rs = ERR_reason_error_string(e); - - if (ls == NULL) + if (ls == NULL) { BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); - if (fs == NULL) + ls = lsbuf; + } + + fs = ERR_func_error_string(e); + f = ERR_GET_FUNC(e); + if (fs == NULL) { BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); - if (rs == NULL) + fs = fsbuf; + } + + rs = ERR_reason_error_string(e); + r = ERR_GET_REASON(e); + if (rs == NULL) { BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); + rs = rsbuf; + } - BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls ? ls : lsbuf, - fs ? fs : fsbuf, rs ? rs : rsbuf); + BIO_snprintf(buf, len, "error:%08lX:%s:%s:%s", e, ls, fs, rs); if (strlen(buf) == len - 1) { - /* - * output may be truncated; make sure we always have 5 - * colon-separated fields, i.e. 4 colons ... - */ -#define NUM_COLONS 4 - if (len > NUM_COLONS) { /* ... if possible */ - int i; - char *s = buf; - - for (i = 0; i < NUM_COLONS; i++) { - char *colon = strchr(s, ':'); - if (colon == NULL || colon > &buf[len - 1] - NUM_COLONS + i) { - /* - * set colon no. i at last possible position (buf[len-1] - * is the terminating 0) - */ - colon = &buf[len - 1] - NUM_COLONS + i; - *colon = ':'; - } - s = colon + 1; - } - } + /* Didn't fit; use a minimal format. */ + BIO_snprintf(buf, len, "err:%lx:%lx:%lx:%lx", e, l, f, r); } } @@ -680,22 +585,18 @@ char *ERR_error_string(unsigned long e, char *ret) if (ret == NULL) ret = buf; - ERR_error_string_n(e, ret, 256); - + ERR_error_string_n(e, ret, (int)sizeof(buf)); return ret; } -LHASH_OF(ERR_STRING_DATA) *ERR_get_string_table(void) -{ - return get_hash(0, 1); -} - const char *ERR_lib_error_string(unsigned long e) { ERR_STRING_DATA d, *p; unsigned long l; - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } l = ERR_GET_LIB(e); d.error = ERR_PACK(l, 0, 0); @@ -708,7 +609,9 @@ const char *ERR_func_error_string(unsigned long e) ERR_STRING_DATA d, *p; unsigned long l, f; - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } l = ERR_GET_LIB(e); f = ERR_GET_FUNC(e); @@ -722,7 +625,9 @@ const char *ERR_reason_error_string(unsigned long e) ERR_STRING_DATA d, *p = NULL; unsigned long l, r; - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) { + return NULL; + } l = ERR_GET_LIB(e); r = ERR_GET_REASON(e); @@ -735,9 +640,9 @@ const char *ERR_reason_error_string(unsigned long e) return ((p == NULL) ? NULL : p->string); } -void ERR_remove_thread_state(void) +void err_delete_thread_state(void) { - ERR_STATE *state = ERR_get_state(); + ERR_STATE *state = CRYPTO_THREAD_get_local(&err_thread_local); if (state == NULL) return; @@ -745,49 +650,96 @@ void ERR_remove_thread_state(void) ERR_STATE_free(state); } +#if OPENSSL_API_COMPAT < 0x10100000L +void ERR_remove_thread_state(void *dummy) +{ +} +#endif + #if OPENSSL_API_COMPAT < 0x10000000L void ERR_remove_state(unsigned long pid) { - ERR_remove_thread_state(); } #endif -static void err_do_init(void) +DEFINE_RUN_ONCE_STATIC(err_do_init) { - CRYPTO_THREAD_init_local(&err_thread_local, NULL); + set_err_thread_local = 1; + return CRYPTO_THREAD_init_local(&err_thread_local, NULL); } ERR_STATE *ERR_get_state(void) { - ERR_STATE *state = NULL; + ERR_STATE *state; + + if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL)) + return NULL; - CRYPTO_THREAD_run_once(&err_init, err_do_init); + if (!RUN_ONCE(&err_init, err_do_init)) + return NULL; state = CRYPTO_THREAD_get_local(&err_thread_local); + if (state == (ERR_STATE*)-1) + return NULL; if (state == NULL) { - state = OPENSSL_zalloc(sizeof(*state)); - if (state == NULL) + if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1)) return NULL; - if (!CRYPTO_THREAD_set_local(&err_thread_local, state)) { + if ((state = OPENSSL_zalloc(sizeof(*state))) == NULL) { + CRYPTO_THREAD_set_local(&err_thread_local, NULL); + return NULL; + } + + if (!ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE) + || !CRYPTO_THREAD_set_local(&err_thread_local, state)) { ERR_STATE_free(state); + CRYPTO_THREAD_set_local(&err_thread_local, NULL); return NULL; } /* Ignore failures from these */ OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); - ossl_init_thread_start(OPENSSL_INIT_THREAD_ERR_STATE); } return state; } +/* + * err_shelve_state returns the current thread local error state + * and freezes the error module until err_unshelve_state is called. + */ +int err_shelve_state(void **state) +{ + if (!OPENSSL_init_crypto(OPENSSL_INIT_BASE_ONLY, NULL)) + return 0; + + if (!RUN_ONCE(&err_init, err_do_init)) + return 0; + + *state = CRYPTO_THREAD_get_local(&err_thread_local); + if (!CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)-1)) + return 0; + + return 1; +} + +/* + * err_unshelve_state restores the error state that was returned + * by err_shelve_state previously. + */ +void err_unshelve_state(void* state) +{ + if (state != (void*)-1) + CRYPTO_THREAD_set_local(&err_thread_local, (ERR_STATE*)state); +} + int ERR_get_next_error_library(void) { int ret; - CRYPTO_THREAD_run_once(&err_string_init, do_err_strings_init); + if (!RUN_ONCE(&err_string_init, do_err_strings_init)) + return 0; CRYPTO_THREAD_write_lock(err_string_lock); ret = int_err_library_number++; @@ -801,10 +753,10 @@ void ERR_set_error_data(char *data, int flags) int i; es = ERR_get_state(); + if (es == NULL) + return; i = es->top; - if (i == 0) - i = ERR_NUM_ERRORS - 1; err_clear_data(es, i); es->err_data[i] = data; @@ -825,28 +777,28 @@ void ERR_add_error_vdata(int num, va_list args) char *str, *p, *a; s = 80; - str = OPENSSL_malloc(s + 1); - if (str == NULL) + if ((str = OPENSSL_malloc(s + 1)) == NULL) { + /* ERRerr(ERR_F_ERR_ADD_ERROR_VDATA, ERR_R_MALLOC_FAILURE); */ return; + } str[0] = '\0'; n = 0; for (i = 0; i < num; i++) { a = va_arg(args, char *); - /* ignore NULLs, thanks to Bob Beck */ - if (a != NULL) { - n += strlen(a); - if (n > s) { - s = n + 20; - p = OPENSSL_realloc(str, s + 1); - if (p == NULL) { - OPENSSL_free(str); - return; - } - str = p; + if (a == NULL) + a = ""; + n += strlen(a); + if (n > s) { + s = n + 20; + p = OPENSSL_realloc(str, s + 1); + if (p == NULL) { + OPENSSL_free(str); + return; } - OPENSSL_strlcat(str, a, (size_t)s + 1); + str = p; } + OPENSSL_strlcat(str, a, (size_t)s + 1); } ERR_set_error_data(str, ERR_TXT_MALLOCED | ERR_TXT_STRING); } @@ -856,6 +808,8 @@ int ERR_set_mark(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return 0; if (es->bottom == es->top) return 0; @@ -868,13 +822,13 @@ int ERR_pop_to_mark(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return 0; while (es->bottom != es->top && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) { err_clear(es, es->top); - es->top -= 1; - if (es->top == -1) - es->top = ERR_NUM_ERRORS - 1; + es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1; } if (es->bottom == es->top) @@ -882,3 +836,24 @@ int ERR_pop_to_mark(void) es->err_flags[es->top] &= ~ERR_FLAG_MARK; return 1; } + +int ERR_clear_last_mark(void) +{ + ERR_STATE *es; + int top; + + es = ERR_get_state(); + if (es == NULL) + return 0; + + top = es->top; + while (es->bottom != top + && (es->err_flags[top] & ERR_FLAG_MARK) == 0) { + top = top > 0 ? top - 1 : ERR_NUM_ERRORS - 1; + } + + if (es->bottom == top) + return 0; + es->err_flags[top] &= ~ERR_FLAG_MARK; + return 1; +}